Because the drain is clogged.
HVAC unit is basically combination of HVAC chiller and all related equipment. See below related link for all details
ouside HVAC unit
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Model # for Lennox HVAC unit
Plug your unit into it and play it loud
To condense
Induction Unit
where is reset button on outside unit of American standard hvac where is reset button on outside unit of American standard hvac
This question is a little vague, but I'll make by best attempt. I am assuming you mean a whole-house HVAC unit, and that you are concerned with a possible power surge so you want to shut the unit off at the thermostat. If this is correct, you need to know that the thermostat doesn't control the HVAC unit the way a switch controls a light fixture. As long as your HVAC breaker is on, you will have AC power at the HVAC unit. This usually includes at least a condenser unit outside and a blower either outside or inside. All the thermostat does is tell the HVAC components when to use the power applied and when to do nothing. The power does not flow through the thermostat to the HVAC like power through a switch to a light. Think of it this way: 'Off' on the thermostat doesn't mean power off. It means 'power available, but unit not running'. So, if you want to protect your HVAC from the potential of a power surge you will have to shut off the circuit breaker(s) feeding the HVAC components, not the thermostat.
On a truck it is under the dash in the HVAC housing. On a van it is in the HVAC unit under the hood.
hvac unit
If you are having trouble with your HVAC unit Flame Heating and Cooling is here to help. Our experts are experienced in fixing and replacing HVAC units. At FLAME, we understand that HVAC repairs can be time sensitive. That is why we do our best to get our HVAC technicians to your home the same day.